Patents by Inventor Peter Xiaohu Zheng

Peter Xiaohu Zheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for providing a rotating key encrypted file system
    Patent number: 9037870
    Abstract: A file system data is divided into two or more data blocks. A unique encryption key is assigned to each data block with the encryption key assigned to each data block being distinct from other encryption keys used to encrypt the other data blocks and each of the data blocks is encrypted using its assigned encryption key. One of the data blocks within the file system is then selected and decrypted using the distinct encryption key assigned to the selected data block and a new encryption key, distinct for the previously assigned encryption key, is assigned to the selected data block and the selected data block is re-encrypted using the new encryption key. This process is then repeated for each data block on a sequential/cyclic and continually rotating basis.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: May 19, 2015
    Assignee: Intuit Inc.
    Inventors: Peter Xiaohu Zheng, Toan Huynh